Mixtures of azoalkanes of varying thermal stabilities at least one of which is an unsymmetrical azoalkane (R--N.dbd.N--R'), are prepared by reacting 4 equivalents of a mixture of two or more primary alkyl, cycloalkyl or aralkylamines with 1 equivalent of sulfuryl chloride in an inert solvent and oxidizing the resulting mixture of sulfamide products with basic bleach. The unsymmetrical azoalkanes can be separated from the symmetrical azoalkanes by a variety of conventional techniques. The azoalkane mixtures are excellent polymerization initiators for vinyl monomers and curing agents for unsaturated polyester resins.
制备不同热稳定性的偶氮烷混合物,其中至少有一种是非对称偶氮烷(R--N.dbd.N--R'),通过将两种或多种主要烷基、环烷基或芳基胺的混合物与1当量的亚
磺酰氯在惰性溶剂中反应,并用碱性漂白剂氧化所得的磺酰胺混合物。非对称偶氮烷可以通过各种常规技术与对称偶氮烷分离。偶氮烷混合物是
乙烯单体的优秀聚合
引发剂和不饱和聚酯
树脂的固化剂。